Ext.js Ext.tab.Panel Container

Ext.js Ext.tab.Panel Container

<!DOCTYPE html>
<html>
   <head>
      <link href = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/classic/theme-classic/resources/theme-classic-all.css"
         rel = "stylesheet" />
      <script type = "text/javascript"
         src = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/ext-all.js"></script>

      <script type = "text/javascript">
         Ext.onReady(function () {
            Ext.create('Ext.tab.Panel', {
               renderTo: Ext.getBody(),
               height: 100,
               width: 200,

               items: [{
                  xtype: 'panel',
                  title: 'Tab One',
                  html: 'The first tab',
                  listeners: {
                     render: function() {
                        Ext.MessageBox.alert('Tab one', 'Tab One was clicked.');
                     }
                  }
               },{
                  // xtype for all Component configurations in a Container
                  title: 'Tab Two',
                  html: 'The second tab',
                  listeners: {
                     render: function() {
                        Ext.MessageBox.alert('Tab two', 'Tab Two was clicked.');
                     }
                  }
               }]
            });
         });
      </script>
   </head>

   <body>
   </body>
</html>